Police video has revealed how children missing from Birmingham were being used by drugs gangs to deal in other areas of the country.
It comes after 21-year-old Zakaria Mohammed was jailed for 14 years after admitting drugs and trafficking offences.
The video from the investigation into Mohammed's actions reveals how youngsters were brought train tickets to travel to Lincoln to carry out drugs deals.
It also shows the inside of some of the drug dens where the youngsters were being kept.
